Leave it to a youngish blogger, 21-year-old AJ Vaynerchuck, to outline in pretty clear language eight mistakes bloggers make in using Twitter.
To wit: Misusing the avatar, underusing the bio, failing to brand the background (guilty), not advertising it enough on the blog (I am at twitter.com/kirklapointe), not following enough people (guilty) lacking the proper Tweet to promotion ratio (um, think I'm not guilty), not interacting with followers (guiltyish) , not using followers for data (not guilty)